From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 12 Jun 2023 14:45:25 +0000 (+0200)
Subject: resolved: add DNS_RESOURCE_KEY_TO_STRING() macro helper
X-Git-Tag: v254-rc1~212^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=25165c1deaaa69ba10a8231200739b9d932f78a7;p=thirdparty%2Fsystemd.git

resolved: add DNS_RESOURCE_KEY_TO_STRING() macro helper

This does the usual compound init trick to get formatted strings of
stuff.

We should probably port various pieces of code over to using this.
---

diff --git a/src/resolve/resolved-dns-rr.h b/src/resolve/resolved-dns-rr.h
index a3fa24eaf9b..fd15cc343d8 100644
--- a/src/resolve/resolved-dns-rr.h
+++ b/src/resolve/resolved-dns-rr.h
@@ -317,6 +317,9 @@ int dns_resource_key_match_soa(const DnsResourceKey *key, const DnsResourceKey *
 char* dns_resource_key_to_string(const DnsResourceKey *key, char *buf, size_t buf_size);
 ssize_t dns_resource_record_payload(DnsResourceRecord *rr, void **out);
 
+#define DNS_RESOURCE_KEY_TO_STRING(key) \
+        dns_resource_key_to_string(key, (char[DNS_RESOURCE_KEY_STRING_MAX]) {}, DNS_RESOURCE_KEY_STRING_MAX)
+
 DEFINE_TRIVIAL_CLEANUP_FUNC(DnsResourceKey*, dns_resource_key_unref);
 
 static inline bool dns_key_is_shared(const DnsResourceKey *key) {